| A | B |
| Cellular Respiration | the process by which cells produce energy from carbohydrates; O2 + C6H12O6 --> CO2 + H2O |
| Aerobic | requires oxygen |
| Anaerobic | does not require oxygen |
| Fermentation | the breakdown of carbohydrates (by yeast, bacteria, or mold) in the absence of oxygen |
| Glycolysis | the first process of CR in which glucose (6C sugar) is broken down to 2 pyruvate (3C sugar) and 2 ATP |
| Krebs Cycle | the second process of CR in which pyruvate is broken down to CO2 and H2O, producing electron carriers for ETC |
| Electron Transport Chain | the third process of CR in which electron carriers create a proton gradient used to produce 34 ATP |
| ATP | adenosine triphosphate; the main energy source for cells |
| Mitochondria | the organelle where CR occurs to produce ATP |
| Cristae | the folded membrane on the interior of the mitochondria across which the ETC occurs |
| Cytoplasm | the fluid that fills a cell; where glycolysis occurs |
| CO2 | carbon dioxide; the gas that is produced by breaking down glucose in CR |
| C6H12O6 | glucose; the molecule that is broken down in CR to produce energy (ATP) for the cell |
| O2 | oxygen; the molecule that is required to break down glucose to make the maximum amount of ATP |
| H2O | water; the molecule that is produced when breaking down glucose in CR |
| Reactants of Cellular Respiration | C6H12O6 (glucose) + O2 (oxygen) |
| Products of Cellular Respiration | CO2 (carbon dioxide) + H2O (water) |
| Products of Fermentation | lactic acid or ethanol alcohol |